blob: aad3f3969d1a5dfba80a4492ee975507491a816b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
|
/* PR37997 */
/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-pre-details -fno-code-hoisting" } */
int foo (int i, int b, int result)
{
int mask;
if (b)
mask = -2;
else
mask = 0;
result = i + 1;
result = result & mask;
return result;
}
/* We should insert i + 1 into the if (b) path as well as the simplified
i + 1 & -2 expression. And do replacement with two PHI temps. */
/* With hoisting enabled we'd hoist i + 1 to before the if, retaining
only one PHI node. */
/* { dg-final { scan-tree-dump-times "with prephitmp" 2 "pre" } } */
|